A visual defect in which curved lines appear bent or distorted, a form of astigmatism or optical aberration.
From Greek 'kyrtos' (curved) and 'opia' (vision, eye condition). A medical/optical term describing curved visual distortions.
Cyrtopia explains why some people see curved lines as wavy—their corneas or lenses aren't perfectly round, creating fascinating optical illusions in their vision.
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